Cotton chopper



J ly 27 1926;

M. 1.. LANGFQRD 9on0 CHOPPER Filed Kqgust 21 1925 2 Sheets-Sheet INVENTOR.

ATTORNEY Patented July 27, 1 9 26.

. Gent en: rp icati'on'lnled' An us/n21, "1925.. aseriar lvo. 5115674. 3

- This, invention relatesto new-and useful j improvements: a. cotton chopper;

a One object of the invention is to provide:

n implement of the. character described. whereby cotton; or other plants," growing in rows, may be. chopped so as, to remove. the

intervals along the; row;

which-will. operate autematically, as the imp ementis; moved. along the rovv, to remove; the s ur-plus ptants'irom.the-row.

A, furtherjeature of the invention resides becheaply plt xixmesi; a

; With the above and other objects. in view I invention has particular relation-to certainfnevel ieatures. of eonstruotion; operaion m1 arrangement of: parts, "an example.

of Whieh is given in this; specifieation and lllustrated 1n the acoompanying drawings,

figerel shows: a p an view of the. lime.

-. 1; a l j i respectiv pair reeonneetedhe e- Eigure' 2 shows. a sectional. viewt ake i he.respe tive "Q .$21 i Zil; 'Whifih re, tted 1 I irzle ne'iit;a I

80 on theline of: Figure 1.

. Ei umtis an; enlar ed. seal-emerge 535-1;

Ei gure 5 a cross: seetionalviewthereot;

theaoamttollowers 2.41ywhoseinnere ds ide r th eamm mber :1;1 an re prov ded,

' withfl rollerijbearings 7 T he outer fiends taken, on. the line. 5+5 of Fi-gureee 1 Referring now more particularly to, .-.thedrawings, wherein hke numerals of refer I enee designate simllar parts. in; eaeh of the. 1

' v es, the n m ral l designatesrthe vmain frame, which is suitably-mated and \tormed Withthesidei rnemhers 2,2- nT e f me s supported by the'axle 3, which isrotatalole in the bearingsy, 4 carried bythe side members 2, and the axle is, in turn carried by the ground wheels 5, 5. Attached to the front end of the frame there is-a tongue 6 for the attachment of the draft animals thereto. I Depending from the respective side mem: .bers 2 are the hangers members 7,7, which have the arcuate bearings, as 8, therein, in

' porting' rodsil are mounted} j ,A cutterhody. 10. is rotatabl-yflmounted on sm'plws: plants: and leave the others at spaced Another object of the, invention is te m; vide; an implement ofthe character described;

hereinafter referred toywill revolve atltheji s.

, housingsfiafit d sir d a 'ment with; and Will drop into the. peripheral j released suddenl close as shown in Figure 3.}Tl1e free enos of these. arms carry the" sharp cutter blades 28, 28, which cooperate, I

when the arms are 'closed to cut the plants i i which, the respectiveendsof the thiS-1r0Cl',:.aI1dl within'zthis body 't ereiis a cam member. 11; which is key-ed 011 said 'l'od;

Bolted to one side of the cutterhody there i isxa sleeve '12"WhlChPhaSfilbeal'llig on the, rod?) andtheouter 'endiof which is formed With a sprooketzwheel The; cutter? body I and its; attached Sleeve are retain-edin place by vthefltlurtnii collars.- 145511745 whichere tened oi l saidarod by; suitahleiset gsere The sprocketwhee1;1 3,1sa grie'dxWl'thQ-a larger, sprocket" wheel "ch33 fix d 0 the axles and operating over: these sprockets there is a: chain 17 which transmits rot goal? ratiois suchi .thatthetutter blades:

same rate. 0t speed, asthe peripherie f; the ground Whe-els-.,;,= w

J At interva aroundth cutter-body there are. the spairslp 't Qppos itelyw,d sposed-1areuate, outwardlygourved cu ter arms-l8; 18.?" These are mounted; :to 2 5 the carried by saidjhody and hearms ofthe pull; springs 20,,- Whose: ends are attach d te springsmay he varied.

1 These springs may be p otected -:Badia1ly=movahle the-.eutter ,hodjii re As the cutter'bodj the 24 will be, carried successively; into aligna notch 27, of the cam member, acting under. the influence of the corresponding springs 20. vThe corresponding'arms 18 beingthus r e inexi nw rod y pr -i ct ngfine eta-26 I 1 bYth LP VQ QQl QH -S: e1? the respeer a tivejpa rs; tierm -wbetween them out of the row. These blades close with a shear like action to prevent dulling of the edges and to more effectively sever the plants to be chopped out of the row.

The forward side of the notch 27 is formed into a cam face 29 which forces the cam followers Ql out, as the body 10 continues its rotation, and opens the arms 18, in succession, immediately after each chopping operation.

Provision has been made for elevating and lowering the cutter body and cutters. In order to accomplish this a bell crank is pivoted to each side member 2, and the links 30, 30', are pivoted at their upper ends to the forward ends of the arms 31, 31, of the respective bell cranks, and the ends of the rod 9 have pintles 32, 32 which work in corresponding bearings in the lower ends of said links. Pivoted at their forward ends to the other arms 33, 33, of said bell cranks are n in the usual rack-a'nd-dog fashion.

obvious that various mechanical changes the links 34, 34: the rear ends of which are pivoted to the upper end of the arm 35 and the hand lever 36, respectively, which are fixed to the transverse shaft 37 rotatably mounted in bearings 38, 38, carried by the frame 1. There isa segmental rack 39, carriedby the frame with which the hand operable dog 40, carried by said lever, cooperates As the lever 36 is operated the cutter body and the cutters are correspondingly moved, said rod 9 moving in the arcuate bearings 8.

A preferred embodiment of the implement has been illustrated and described, but it is may be made without departing from prin ciple of the invention, and I hereby reserve the right to vary the construction so long as I do not depart from the scope of the appended claims. I

What I claim is:

1. An implement of the character described including a frame, ground wheels supporting the frame, a cutter body carried by the frame, a cam member associated with said body, a plurality of pairs of cutters carried by said cutter body, a follower associated with each pair of cutters and normally held in position by said cam member to maintain the cutters in inactive position, means effecting relative movement of said body and cam member to release said followers successively from their respective pairs of cutters, means operatively connected with the cutters of the respective pairs and adapted to actuate them into co-operative relation when so released;

2. An implement of the character described including a frame, ground wheels supporting the frame, a cutter body carried by the frame, a cam member associated with said body a plurality of cutters carried by said body, a follower associated with each pair of cutters and normally held in position by said cam member to maintain the cutters in inactive position, meanseffecting relative movement of said body and cam member to release said followers successively from their respective pairs of cutters, means operatively connected with the cutters of the respective pairs and adapted to actuate them into co-operative relation when so released, and means for bodily adjusting said body and cutters, relative to the frame.

3. An implement of the character described including a frame-embodying a sup-i porting rod, ground wheels, a cutter body rotatable on said rod, a cam member fixed on said rod and housed within the body, a cutter carried by the cutterbody, a follower radially movable within the body and associated with the cutter and normally held in position by said cam member to maintain the cutter in inactive position, insane for rotating said body on saidrod andthereby effecting the. release of said follower fromthe cutter and means operatively connected with the cutter and adapted to actuate the same when so released.

4. In an implement of the character de scribed a cutter body, a rod on which the body is rotatably mounted, a plurality'of pairs of cutters carried by said body, a cam member fixed to said rod and housed within the body, a follower associated with each pair of cutters and normally held-in position by said cam member to maintain the cutters'in inactive position, said followers being radially movable within-said body,- means for rotating said body about said cam to release the followers successively from their respective pairs of-cutters,'means op eratively connected with the cutters of the respective pairs and adapted to actuate them into cooperative relation when so released, I

In testimony whereof I have signed my" name to this specification.-

MARCUS L. LANGFORD. 

